condition mean min max ZT0-3 207.0665 207.0665 207.0665 ZT4-7 196.5215 196.5215 196.5215 ZT8-11 208.82299999999998 208.82299999999998 208.82299999999998 ZT12-15 235.0655 235.0655 235.0655 ZT16-19 222.0405 222.0405 222.0405 ZT20-23 244.135 244.135 244.135